<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="react.min.js"></script>
    <script src="react-dom.js"></script>
    <script src="browser.min.js"></script>
</head>
<body>
<div id="example">

</div>
<script type="text/babel">


    var MyComponent = React.createClass( {
        handleClick: function () {
            this.refs.myTextInput.focus();
        },
        render:      function () {
            return (
                    <div>
                        <input type="text" ref="myTextInput"/>
                        <input type="button" value="Focus the text input" onClick={this.handleClick}/>
                    </div>
            );
        }
    } );

    ReactDOM.render(
            <MyComponent />,
            document.getElementById( 'example' )
    )


</script>
</body>
</html>